You will be assessed on your ability to
2.16 recall the gases present in air and their approximate percentage by volume
2.17 describe how experiments involving the reactions of elements such as copper, iron and phosphorus with air can be used to determine the percentage by volume of oxygen in air
2.18 describe the laboratory preparation of oxygen from hydrogen peroxide
2.19 describe the reactions with oxygen in air of magnesium, carbon and sulphur, and the acid- base character of the oxides produced
2.20 describe the laboratory preparation of carbon dioxide from calcium carbonate and dilute hydrochloric acid
2.21 describe the formation of carbon dioxide from the thermal decomposition of metal carbonates such as copper(II) carbonate
2.22 recall the properties of carbon dioxide, limited to its solubility and density
2.23 explain the use of carbon dioxide in carbonating drinks and in fire extinguishers, in terms of its solubility and density
2.24 understand that carbon dioxide is a greenhouse gas and may contribute to climate change
oxygen and oxides
You will be assessed on your ability to2.16 recall the gases present in air and their approximate percentage by volume
2.17 describe how experiments involving the reactions of elements such as copper, iron and phosphorus with air can be used to determine the percentage by volume of oxygen in air
2.18 describe the laboratory preparation of oxygen from hydrogen peroxide
2.19 describe the reactions with oxygen in air of magnesium, carbon and sulphur, and the acid- base character of the oxides produced
2.20 describe the laboratory preparation of carbon dioxide from calcium carbonate and dilute hydrochloric acid
2.21 describe the formation of carbon dioxide from the thermal decomposition of metal carbonates such as copper(II) carbonate
2.22 recall the properties of carbon dioxide, limited to its solubility and density
2.23 explain the use of carbon dioxide in carbonating drinks and in fire extinguishers, in terms of its solubility and density
2.24 understand that carbon dioxide is a greenhouse gas and may contribute to climate change
Section notes
Textbook
Investigations
Proportion of oxygen in air using copper oxide.pdfHow much air is used up during rusting.pdf
Also a simple investigation uses candles as shown below. A candle floating on water is placed underneath a graduated beaker after it has been lit. When the candle extinguishes the water rises to about 1/5th of the height of the measuring cylinder.
candle burning underneath beaker experiment
youtube clip of candle burning
Thermal stability of metal carbonates.pdf
Resources
Worksheets
Animations
Animation showing how to investigate the proportion of oxygen in atmosphere using gas syringes copper and oxygen reactionAcid rain
preparation of oxygen by decomposing hydrogen peroxide
Video clips
preparation of oxygenYoutube clip on global warming
carbon dioxide production